In a shop, a cashier (or checkout assistant) is a person who scans the goods through a machine called a cash register that the customer wishes to purchase at the retail store. The items are scanned by a Barcode positioned somewhere on the item. This is done by the use of laser technology. After all of the goods have been scanned, the cashier then collects the payment (in cash, check and/or by credit/debit card) for the goods or services exchanged, records the amount received, makes change, and issues receipts or tickets to customers. Cashiers will record amounts received and may prepare reports of transactions, reads and record totals shown on cash register tape and verify against cash on hand. A cashier may be required to know value and features of items for which money is received; may cash checks; may give cash refunds or issue credit memorandums to customers for returned merchandise; and may operate ticket-dispensing machines and the like.